condition mean min max 4 h after light 2.84234 1.39073 5.37805 8 h after light 2.52175 1.08551 3.7782 12 h after light 3.892336666666667 2.39331 4.80621 4 h after dark 4.39836 3.79166 5.11986 8 h after dark 3.41575 2.56788 4.01191 12 h after dark 2.60266 2.05121 3.12392